{"product_id":"arp-main-stud-kit-2-bolt-for-91-00-bmw-325i-525i-m3-z3-m50-m52-s50us-s52us","title":"ARP Main Stud Kit 2-Bolt For 91-00 BMW 325i\/525i\/M3\/Z3 \u0026 M50\/M52\/S50US\/S52US","description":"\u003cp\u003eDesigned for BMW’s robust M50-based 24-valve inline-6 engines, the ARP 2-Bolt Main Stud Kit offers bulletproof bottom-end reinforcement. It eliminates main cap walk and fretting while preserving block threads under high load conditions, ideal for high-performance street builds and full-race applications alike.\u003c\/p\u003e\n\u003cp\u003eMade from premium 8740 chrome moly steel, each stud is heat-treated to 190,000 psi and rolled with J-form threads after treatment—ensuring unmatched fatigue strength. Complete with hardened washers and aerospace-grade nuts, this kit replaces factory hardware with racing-grade reliability.\u003c\/p\u003e\n\u003cdiv id=\"gmail-description\"\u003e\n\u003cdiv id=\"gmail-descriptioncontent\"\u003e\n\u003cdiv\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eHeat-treated to 190,000 psi tensile strength\u003c\/li\u003e\n\u003cli\u003eRolled threads offer 1000% better fatigue strength\u003c\/li\u003e\n\u003cli\u003ePrevents main cap walk and block thread damage\u003c\/li\u003e\n\u003cli\u003eFits BMW M50, M52, S50US, and S52US engines\u003c\/li\u003e\n\u003cli\u003eReplaces BMW OEM part numbers for easy install\u003c\/li\u003e\n\u003cli\u003eCold-forged for superior molecular integrity\u003c\/li\u003e\n\u003cli\u003eIncludes aerospace-grade nuts and washers\u003c\/li\u003e\n\u003cli\u003eIdeal for high-horsepower or track builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMain Bolt Style: 2-bolt\u003c\/li\u003e\n\u003cli\u003eFastener Style: Stud\u003c\/li\u003e\n\u003cli\u003eFastener Nut Style: Standard hex\u003c\/li\u003e\n\u003cli\u003eWorks with Windage Tray: No\u003c\/li\u003e\n\u003cli\u003eFastener Tensile Strength (psi): 190,000 psi\u003c\/li\u003e\n\u003cli\u003eNuts Included: Yes\u003c\/li\u003e\n\u003cli\u003eWashers Included: Yes\u003c\/li\u003e\n\u003cli\u003eQuantity: Sold as a kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e(1) Head Stud Kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e1991-1995 E34 525i (24v, M50 and M50TU)\u003c\/li\u003e\n\u003cli\u003e1992-1995 E36 325i, 325is (M50 non-VAN0S \u0026amp; M50TU VAN0S)\u003c\/li\u003e\n\u003cli\u003e1996-1998 E36 328i, 328is (M52)\u003c\/li\u003e\n\u003cli\u003e1994-1995 E36 M3 3.0 liter (US spec)\u003c\/li\u003e\n\u003cli\u003e1996-1999 E36 M3 3.2 liter (US spec)\u003c\/li\u003e\n\u003cli\u003e1997-1998 E39 528i (single VAN0S)\u003c\/li\u003e\n\u003cli\u003e1997-1998 Z3 2.8 liter\u003c\/li\u003e\n\u003cli\u003e1998-2000 MZ3 M Roadster \/ M Coupe\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eLifetime Warranty \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"ARP","offers":[{"title":"Default Title","offer_id":46671562473629,"sku":"201-5000","price":189.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0645\/2504\/1821\/files\/201-5000.png?v=1744647128","url":"https:\/\/rudysdiesel.com\/products\/arp-main-stud-kit-2-bolt-for-91-00-bmw-325i-525i-m3-z3-m50-m52-s50us-s52us","provider":"Rudy's Performance Parts","version":"1.0","type":"link"}